Colonoscopy practice patterns since introduction of medicare coverage for average-risk screening

Clinical Gastroenterology and Hepatology - Tập 2 - Trang 72-77 - 2004
Gavin C Harewood1, David A Lieberman2
1Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
2Oregon Health and Science University, Portland, Oregon, USA